Tube support for deep-well pumps



Dec 318 W23.

J. PENROD ET AL.

TUBE SUPPORT FOR DEEP WELL PUMPS Original Filed Aug. 24 1921 2 SheetsfiSheei: l

Ill/VE/l/TOR 6. John Pan r-oo FOGEIPID. Tnom son WITNESSES ATTORNEYS Deg, 118 192".

J. PENROD ET AL TUBE SUPPORT FOR DEEP WELL PUMPS Original Filed Aug. 24 1921 2 Sheets-Sheeo 2 WITNESSES J 4 TTOR/VEVS Patented net. 18, 1923.

rrno STATES JOHN PENROD AND ROBERT D. THOMPSON, F 'OKMULGEE, OKLAHOMA.

TUBE SUPPORT FOR DEEP-WELL PUMPS.

Original application filed August 24, 1921, Serial No. 494,846. Divided and this application filed April 1, Y

1922. Serial No. 548,606.

To all whom it may concern:

Be it known that we, JOHN PENRon and ROBERT D. THOMPSON, citizens of the United States, and residents of Okmulgee, in the a county of Okmulgee and State of Oklahoma,

have invented certain new and useful Improvements in Tube Supports for Deep- VVell Pumps, of which the following is a specification.

Our present invention relates generally to deep well pumps of the class described and claimed in our 494,846, filed August 24, 1921, and more particularly to a tube support-for pumps of this 16 type, our present application being a division of the application just above referred to, and our object being the provision of a tube support by means of which a rope or cable actuated pump may Without other means be lowered into a well to the point desired and securely held in place while the pumping proceeds, as well as one which will perform these functions in such a way that without the use of means other than the pump ac- I tuating rope or cable, the 'pump may be quickly dislodged and removed whenever it becomes desirable or necessary to do this.

In the accompanying drawing in which our invention-is completely illustrated as to both the tube support and the pump in order that it may be thoroughly understood,

Figure 1 is a sectional view showing the tube supporting portion of our improved pump loosely disposed-therein prior to anchoring.

Figure 2 is a similar view through the somewhat lower portion of the casing, showing the pump portions of our device,

Figure 3 is a view similar to Figure 1 showing the tube support or anchoring means in effective position,

Figure 4: is a transverse section taken on line 4-4 of Figure 3, and

Figure 5 is a detail perspective view on an enlarged scale, of a portion of the clutch ring, showing one of the clutching members or anchors.

Referring now to these figures, we have shown in Figures 1, 2 and 3 the cylindrical 50. casing A of a driven well, as for instance,

. an oil well, within which our improvements are. designed to operate without the use of 'a pump tube ordinarily employed within the casing and which as well known requires step by step jointing and unjointing in its insertion and removal copending application so that these operations are both lengthy and tedious and become dec1dedly disadvantageous especially in those oil wells where sand abounds in 1 great quantities in the oil, requiring the removal of cup leathers and frequently of the valves and other sections at comparatively short intervals. 1

In our improved arrangement a pump barrel is utilized within the lower enlarged portion 10 of which the piston 11 operates above the lower intake or standing valve 12, the latter secured in connection with a shoe 13 at the lower end of the barrel above the perforated intake member 14. It is to be understood that so far as our invention is con- .cerned the pumping member, for instance,

piston 11 may be of any suitable type, various types now in use being adaptable with almost equal facility, and it is to be further understood that the type of piston we have shown is for illustration only, its upper valve 15 permitting up flow of fluid through the. pump upon each downward stroke of the latter so as to lift, durin each downward stroke, that fluid sucked up through the standing valve 12 upon the previous up-' ward stroke of the piston.

To the piston 11 is connected the lower end of a pump rod 16 passing upwardly through the upper reduced portion 17 of the pump barrel, the latter of which is con nected at its lower end with the lower enlarged portion 10 of the barrel by a reducer 18 and a cylindrical relief valve housing 19 having a tapering inner surface 20 adjacent to its lower end provided withradial openings 21 through its wall. A conical relief va ve 22 is lengthwise slidable within the housing 19 above the upper end of the. lower enlarged portion 10 of the pump barrel and normally seats against the tapering inner surface 20 under tension of a spring of which supports a clutch actuating ring 26, this ring being'freely slidable on the barrel 17, below the clutch supporting ring 27, the latter of which is also slidable upon the pump barrel.

The ring 27 isprovided with upstanding bearin members 28 at spaced points therearoun as is best seen in Figure 5, upon which bearing members are pivotally connected the lower endsof links 29 whose upper ends are in turn pivotally connected to the lower ends of the clutching or anchor members 30 having outer inclined and toothed surfaces 31', and having inner dove tailed grooves 32.

The several clutch or anchor members 31 are movable into and out of the effective position upon the external surface of a slide 33 movab e on the upper portion of the barrel 17 between stationery collars 34 and 35. This slide 33 has an outer tapering surface provided with outstanding dove tailed ribs 36, which the dove tailed grooves 32 of the clutch or anchor members 30 receive, so that in their movement with respect to the slide,

these clutching members or anchors 30 will be guided by theribs and as the clutch members move upwardly along the surface of the slidethey will be shifted outwardly by virtue of the tapering outer surface of the slide. At its upper end the slide 33 engages a compressible ring 37 around the pump barrel whose upperend abuts a head 38 rigidly securedto the upperend of the pump barrel.

As will be seen by reference to Figures 1 and 3 the pump rod 16 passes u wardly through the relief valve 22 and through the upper reduced portion 17 of the barrel in spaced relation to both of these parts so that there is left a free passage for the upward movement of the fluid around the pump rod into the well casing. A above the pump barrel. 4

The clutch actuating ring 26' is a member of considerable weight whereby when, duringthe lowering movement of the pump barrel into'the well casing this movement is'suddenly checked, the clutch actuatingring 26 will move downwardly on the barrel 17 against the tension of spring and will compress this spring to such an extent that the rebound of the spring will shift the ring 26 upwardly into forceful engagement with a clutch supporting ring 27, throwing the. latter upwardly with its clutch or anchor members whereby the latter will slide upwardly and outwardly on the slide member 30 into engagement with the inner surface of the well casing A.

For the above purposeit will be understood that in lowering the pump into the well casing in the first instance the parts will be in the position shown in Figure 1 with the slide 33 in lowermost position against the lower stop collar 34, and means employed being the same means subsequently utilized to impart reciprocating movements of the pump rod and. its piston.

Thus a cable 39 may be utilized, its lower end passing through the upper axial opening 40 o a cable connecting member 41, and the lower end of the cable being permanently secured within a rectangular block 42 shiftable into and out of a rectangular socket of T0 the member 41 through its side opening 43 and normally held in place within said socket by a set screw 44. .Thus turning movement of the cable 39 will be communicated to the cable connecting member 41, the

latter of which has a depending internally threaded portion 45. On the upper shouldered end of the pump rod 16 is'a flanged rotating sleeve 46 threaded into thedepending portion of the cablekonnecting member 41 with its upper surface opposing the lower surface of a head 47 rigidly secured u on the upper end-of the pump rod. Antiriction balls 48 provide. for free rotation of the cable connecting member with respect to the upper 35 end of the pump rod, such balls being disposed as shown in Figures 1 and 3 between the collar 46 and the head 47 of the pump rod, so that all twisting and turning movement of the cable 39 will thus be taken up with minimum wear of the parts and without turning movement of, the piston 11 which would have the elfectof causing too great wear of the latter.

Adjacent to its lower end the ump rod 16 has an, annular rib 49 as plainly seen in Figure 2 which is movable upwardly through the lower end of the relief valve housing 19 and into engagement with the lower end of the relief valve 22 as shown in dotted lines in Figures 3-and 5, rib 49 being spaced above a lower and somewhat larger rib 50 of the pump rod provided with notches 51 to admit of free passage of fluid thereby and adapted upon engagement,'during'upward movement of the pump rod,. with the lower end of the relief valve housing 19 which forms an annular shoulder within the upper end of the lower enlarged portion 10 of the pump barrel.

This in lowering the pump within the well casing A by means of the cable 39 and with the parts in the position shown in Figure 1. the compressible sleeve 37 being in the normal extended position. the weight of the pump barrel and its parts is sustained through the pump rod 16 and its lowermost collar 50 in engagement with therlower shouldered end of the relief valve housing 19. When the pump has reached to the point .where' it is desired to be anchored for operamie gagement with the clutch supporting ring 27 so as to force the latter with its several clutches or anchor members 30 upwardly.

and outwardly along the slide 33 and into a engagement with the inner surface of the well casing A so that these clutches or anchor members 30 will thereafter sustain the weight of the pump rod and its parts by virtue of their downwardly inclined teeth 31 w in contact with the well casing. Thus when the pump rod is again slightly lowered, the barrel and its parts-supported now by the clutch members 30 will move downwardly through the slide 33 cdmpressing the sleeve 15 37 between the slide and the barrel head 38 until this sleeve is extended laterally by such compression into firm, even and uniform contact with the inner surface of" the well casing A so as to prevent downward pas- 2 sage of fluid past this sleeve.

Thus the parts will in active position assume the position shown in Figure 3 and it is simply necessary to continue lowering movement of the pump rod 16 to such a SE-t5 point that its lunger will move upwardly and downwar ly in operation between the lower standing valve 12 and the relief valve housing 19 without engaging either of these parts. Thus as the piston '11 moves upwardly fluid will be sucked upwardly through the perforated intake member 14 and upwardly through the standing valve 12 within the lower portion of the barrel 12 below the pump and ,upon each down as ward'movement of the piston this fluid will be forced upwardly through the piston and through its valve 15 and from thence upwardly around the piston in and through the reduced or'tion 12 of t e barrel into the at well casing above the pump.

' It is obvious that the clutch or anchor members support the pump barrel in the active position against downward movement and do not prevent the barrel from upward 4t movement, which frictional engagement of the compressed sleeve 27 with the well casing and the weight above the pump alone prevents, and it thus becomes obvious thatwhen the pump is to be pulled upwardly out to of the well, elimination of excessive strain upon the cable 39 depends upon relief of the weight of the fluid upon the pump. It is for this purpose that thepump rod 16 has a collar 49 engageable with the lower end of as the relief valve 22 as the pump rod is drawn upwardly beyond the limit of its normal up stroke in drawing the pump from the well. Upon such engagement of the rib or collar 49 of the relief valve 22, the latter held an seated by its spring 23 to close the openings 29 leading through the well to the relief rod and the lower shouldered end of the relief valve housing so that the pump barrel will be lifted and as the clutch or anchor members 30 shift downwardly the slide 33 will also be free so that it may shift downwardly and relieve distending pressure against the flexible sleeve 37.

lit is thus obvious that our invention is particularly advantageous in connection with those wells requiring the frequent removal of the pump for cleaning and repairing as well as those wells requiring frequent swabbing, on account of its adaptability to extremely easy and quick installation and removal, and that while as shown the pump is limited to use in wells where the weight of fluid abo e the pump barrel can be lifted by means oi a cable such as the cable 39, it is to be observed that the cable connecting member 41 has an upper reduced and externallv threaded portion 52which may be utilized to connect the lower end of a plunger actuating rod or tube in place of the cable.

We claim: 1

The combination with a fluid pump for operation within well casings and including a sectional barrel and external coupling rings connecting the sections of said barrel and forming upper and lower stops, of a pair of vertically opposed members on the barrel,

the upper member of which is stationary and the lower member of which has limited sliding movement on the barrel and between said upper and lower stops toward and away from the stationary member, a flexible sleeve around the barrel between said stationary and sliding members, toothed casing gripping members coactin with the said slida'ble member, a ring mova le on the barrel having flexible connection with said gripping members and whose upward movement is limited by the lower stop, and an actuating member for the gripping members consisting of a ring movable on the barrel. having a supporting spring and movable into engagement with the said ring of the gripping members as described.

JOHN PENROD. ROBERT THOMPSON. 

